Automatic wagon-brake



(No Model.)

, M SPENCER.

AUTOMATIC WAGON BRAKE.

No. 857,870. Patented Feb. 15 1887.

lhvrrnn STATES PATENT OF ICE.

MASS SPENCER, OF \VELLSBOROUGH, PENNSYLVANIA.

AUTOMATIC WAGON-BRAKE.

GPECIFICATION forming part of Letters Patent No. 357,870, dated February 15, 1887.

Application filed September 28, 1886. Serial No. 214,758. (No model.)

To all whom it may concern:

Be it known that I, MAss SPENCER, of Wellsborough, in the county of Tioga and State of Pennsylvania, have invented a new and useful Improvementin Automatic IVagon- Brakes; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention is an improved wagon-brake of that class in which the motion of the tongue sliding in the hounds is transmitted to the brakes.

My object is to simplify the construction of the devices whereby power is transmitted from the tongue to the brake-levers; and in these improved details, hereinafter specifically claimed, my invention consists.

In the accompanying drawings, Figure 1 is 'a plan view. Fig. 2 is a longitudinal section on line at m of Fig. 1.

In the drawings, the hind axle, A, is connected to the forward axle bya reach, a, braced by hind hounds, b b. On these hounds and the reach is placed a cross bar or plate, B, which may be fixed adjustably to its place. Upon this plate or bar are pivoted the brakelevers c c, on the outer ends of which are iron brake-blocks d d. The inner ends of the levers o c are connected to rods 6 e, by means of which power is exerted to apply the brakes. These rods are extended forward, one on each side of the reach, and their forward ends are pivoted to a bar, D, whereby they are connected flexibly to the lower ends of thelevers on the houndsff. Between the forward ends of these hounds are pivoted the tongue-hounds F F. The tongue-hounds and the lever G are all pivoted on one and the same bolt, H, which has its bearings in the forward ends of the houndsff. The lever G is made of metal bars, double, as shown at g g, to straddle the tongue, and working in chamfers in theinner faces of thehounds. The bolt H passes through ahorizontal slot in the tongue, which allows said tongue a forward and backward movement in the tongue -hounds. To hold the tongue horizontal therewith, a second bolt, h, is passed through the hounds F F and the slot in the tongue in front of tllebolt H. The bolt kalso serves to takeaportion of thestrain.

The slot is made of proportions fitted to give the proper amount of movement to the tongue. The upper ends of the bars 99, which form the lever G, are brought by lateral bend near each other, and between them is pivoted the link k, which is connected to an eyebolt, Z, in the tongue. The forward end of the bar Dis pivoted between the lower ends of the bars g g. It will therefore be plain that the rearward movement of the tongue, sliding on the bolts in the hounds, will, through the link 70, push back the upper ends of the lever G and draw on the rods and inner end of the brake levers, thus applying the brake. It will be observed, also, that the pivoting of the lever G upon the tongue and hounds causes the upward movement of the tongue, caused by the holding back of the team, to act in the same direction as the backward movement of the tongue, and this action also, therefore, tends to apply the brakes.

A hole, at, is made down through the tongue in front of the position of the bolt h. when the tongue is drawn forward and the brakes are off, and a pin, a, attached to the eyebolt, is provided to fit the hole m. When this pin is in place in the hole and in front of the bolt 72, it prevents backward movement of theton gue from putting on the brakes.

The brake-levers may be changed, as there are many forms and arrangements. Those shown, however, are convenient, and by arranging them on the plate or bar they may be easily adjusted to their proper place by simply fixiug the plate in proper position on the reach and hounds.

The pivoting of the lever G on the hounds simplifies the construction and requires very slight addition to the parts ordinarily used. The lever may be of a solid bar and in the middle or on one side of the tongue, as shown in the figures. I prefer iron brake-blocks with this brake mechanism.

I claim- 1. In combination, the houndsff and bolt H, a sliding tongue, a lever, G, both of said parts being pivoted upon the same bolt H, and connections from the lever to the tongue, and also to the brake-levers, substantially as described.

2. In combination, the sliding tongue'pivoted in the tongue-hounds F F, the lever G, pivoted on the bolt which pivots the tongue and connected at its upper end to the tongue, the bar D, pivoted to its lower end, and the rods hinged to the rear end of the bar and extending on each side of the reach to the brakelevers, substantially as described.

3. In combination, the hounds ff of the wagon, the tongue-hounds E F, the slotted tongue, the lever G, pivoted with the sliding tongue to the hounds and connected by a link at its upper end to the tongue, the bolt H,pivoting the tongue and link to the hounds ff, the bolt h, passing through the tongue-hounds F F and the slot in the tongue, and the pin n, fitted to the hole m in the tongue, whereby the tongue may be held from sliding, all substantially as described.

4. In combination, the slotted tongue, the 20 bolts h and H, for supporting said tongue, and the hounds F F, pivoted upon the bolt Hand carrying the bolt 7?, substantially as described.

In testimony whereofI have signed my name to this specification in the presence of two sub- 2 5 scribing witnesses.

MASS SPENCER.

Witnesses:

EUGENE BEAUGE, FRANK WATKINS. 

